दूर एक स्थान पर जाता है और वापिस आने
में 14 घंटो का समय लेता है। वह यह पाता है कि जितनी देर में 4
कि.मी. धारा के साथ जाता है उतनी ही देर में धरा के विरुध 3 कि.
मी. जाता है। धारा की दर क्या है ?
(a) 1 km/hr
(b) 1.5 km/hr
(c) 1.8 km/hr
(d) 3.5 km/hr
3. Boat A travels downstream from Point X to point Y in 3
hours less than the time taken by Boat B to travel
upstream from Point Y to Point Z. The distance between
X and Y is 20 km which is half of the distance between
Y and Z. The speed of Boat B in still water is 10 km/h
and the speed of Boat A in still water is equal to the
speed of Boat B upstream. What is the speed of Boat A
in still water? (Consider the speed of the current to be
the same.)
एक नाव Aधारा के साथ बिंदू X से बिंदू Y जाने में, एक दूसरी नाव
संडे कम
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answer is the 4th question 35 km/hr
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